DFB Fiber Laser Magnetic Field Sensor Based on the Lorentz Force

2006 ◽  
Author(s):  
Geoffrey A. Cranch ◽  
Gordon M. Flockhart ◽  
Clay K. Kirkendall
Keyword(s):  
Magnetic Field ◽  
Fiber Laser ◽  
Lorentz Force ◽  
Magnetic Field Sensor ◽  
Field Sensor

Magnetic field sensor based on multilongitudinal mode fiber laser and radio-frequency demodulation

2021 ◽  
Author(s):  
Ling Liu ◽  
Jian Xu ◽  
Tigang Ning ◽  
Li Pei ◽  
Jingjing Zheng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Radio Frequency ◽  
Fiber Laser ◽  
Magnetic Field Sensor ◽  
Field Sensor ◽  
Frequency Demodulation

scholarly journals Miniature Fiber-Optic Magnetic Field Sensor Based on Ampere Force and Fiber Laser

2020 ◽  
Vol 10 (4) ◽  
pp. 291-297
Author(s):  
Weiren Cheng ◽  
Tianming Luo ◽  
Linghao Cheng ◽  
Hao Liang ◽  
Bai-ou Guan
Keyword(s):  
Magnetic Field ◽  
Fiber Laser ◽  
Fiber Optic ◽  
Copper Wire ◽  
Beat Signal ◽  
Magnetic Field Sensor ◽  
Frequency Change ◽  
Dual Frequency ◽  
Ampere Force ◽  
Field Sensor

Abstract A compact fiber-optic magnetic field sensor is proposed by packaging an orthogonal dual-frequency fiber grating laser and a copper wire with alternating electrical current together inside epoxy resin. The alternating current generates Ampere force in a magnetic field, which changes the birefringence of the fiber laser and hence tunes the frequency of the beat signal after photodetection. The magnetic field magnitude can then be detected by measuring the frequency change of the beat signal. The sensitivity of the sensor can be tuned with a maximum response of 35.21 kHz/kGs demonstrated. Moreover, the sensor shows good immunity to environment interference.

scholarly journals Ampere force based magnetic field sensor using dual-polarization fiber laser

2013 ◽  
Vol 21 (11) ◽  
pp. 13419 ◽  
Author(s):  
Linghao Cheng ◽  
Zhenzhen Guo ◽  
Jianlei Han ◽  
Long Jin ◽  
Bai-Ou Guan
Keyword(s):  
Magnetic Field ◽  
Fiber Laser ◽  
Magnetic Field Sensor ◽  
Dual Polarization ◽  
Ampere Force ◽  
Field Sensor

Adjustable Sensitivity MEMS Magnetic Sensor

2014 ◽  
Author(s):  
Sangtak Park ◽  
Majed S. Al-Ghamdi ◽  
Mahmoud Khater ◽  
Eihab Abdel-Rahman ◽  
Mustafa Yavuz
Keyword(s):  
Magnetic Field ◽  
Lorentz Force ◽  
Dynamic Range ◽  
Magnetic Sensor ◽  
Magnetic Field Sensor ◽  
Torsional Vibrations ◽  
Experimental Demonstration ◽  
Sensor Sensitivity ◽  
Field Sensor ◽  
Dc Bias

This paper introduces a novel MEMS magnetic field sensor based on the Lorentz force. It measures torsional vibrations excited via Lorentz force. The sensor sensitivity and dynamic range can be tuned by varying an electrostatic bias. Experimental demonstration shows that the sensor sensitivity can be changed from 0.7 (m/s)/T at 6 V DC bias to 1.4 (m/s)/T at 0 V DC bias.

Magnetic field sensor using Cu-coated DFB Fiber laser

2018 ◽  
Author(s):  
Chaojiang Hao ◽  
Ying Song ◽  
Wentao Zhang ◽  
Yifei Ma ◽  
Fang Li ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fiber Laser ◽  
Magnetic Field Sensor ◽  
Field Sensor

A novel miniature fiber optic magnetic field sensor based on Ampere force and dual-polarization fiber laser

2013 ◽  
Author(s):  
Zhenzhen Guo ◽  
Linghao Cheng ◽  
Jianlei Han ◽  
Bai-Ou Guan ◽  
Long Jin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fiber Laser ◽  
Fiber Optic ◽  
Magnetic Field Sensor ◽  
Dual Polarization ◽  
Ampere Force ◽  
Field Sensor

Lorentz force based magnetic field sensor with optical readout

2004 ◽  
Vol 110 (1-3) ◽  
pp. 112-118 ◽  
Author(s):  
Franz Keplinger ◽  
Samuel Kvasnica ◽  
Artur Jachimowicz ◽  
Franz Kohl ◽  
Johannes Steurer ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Lorentz Force ◽  
Magnetic Field Sensor ◽  
Optical Readout ◽  
Field Sensor

Lorentz force based resonant MEMS magnetic-field sensor with optical readout

2016 ◽  
Vol 241 ◽  
pp. 12-18 ◽  
Author(s):  
Byoungyoul Park ◽  
Meiting Li ◽  
Sampath Liyanage ◽  
Cyrus Shafai
Keyword(s):  
Magnetic Field ◽  
Lorentz Force ◽  
Magnetic Field Sensor ◽  
Optical Readout ◽  
Field Sensor

Heterodyning fiber laser based magnetic field sensor using magnetostrictive composite material

2015 ◽  
Author(s):  
Wei He ◽  
Linghao Cheng ◽  
Qiang Yuan ◽  
Yizhi Liang ◽  
Long Jin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Composite Material ◽  
Fiber Laser ◽  
Magnetic Field Sensor ◽  
Field Sensor
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